

ul {
    margin-top: 0;
    margin-bottom: 0;
    padding-left: 0;
    list-style: none;
}

li {
    position: relative;
}

a {
    text-decoration: none;
    color: rgba(0, 0, 0, 0.65);
    font-size: 14px;
}

a:hover {
    background-color: rgba(0, 0, 0, 0.04);
}

a:hover,
i:hover {
    color: #1890ff;
}

nav {
    background-color: #ffffff;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.05);
    margin-bottom: 20px;
}

.menu>.menu-item {
    display: inline-block;
    font-size: 16px;
}

.menu>.menu-item::before {
    content: ' ';
    position: absolute;
    width: 100%;
    border-top: 2px solid transparent;
    transition: color .3s cubic-bezier(.645, .045, .355, 1), border-color .3s cubic-bezier(.645, .045, .355, 1), background .3s cubic-bezier(.645, .045, .355, 1), padding .15s cubic-bezier(.645, .045, .355, 1);
}

.menu>.menu-item:hover::before,
.menu>.active.menu-item::before {
    border-top: 2px solid #1890ff;
}


.menu>.menu-item>a {
    display: inline-block;
    line-height: 24px;
    padding: 19px 20px;
}

.menu>.menu-item:hover .submenu {
    display: block;
}

.submenu {
    position: absolute;
    display: none;
    z-index: 1050;
    padding: 5px 0;
    min-width: 160px;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.17);
    background-color: #fff;
}

.submenu>.menu-item>a {
    display: block;
    line-height: 22px;
    padding: 10px 20px;
}

.more {
    content: ' ';
    position: absolute;
    display: block;
    right: 3px;
    top: 50%;
    width: 0;
    margin-top: -3px;
    border: 6px solid transparent;
    border-top: 6px solid rgba(0, 0, 0, 0.65);
    transition: all .2s;
}

.menu>.menu-item:hover .more {
    transform: rotate(180deg);
    margin-top: -9px;
}